Improvement in printing-presses



@sheets-sneed E'. A.WARREN. "Printing-Press.

No'. 127 815, Patented June 11,1812.

' 'Shees--iiet 2. E. A. WARREN. Printing-Press.

$10,127,815l Patented June1,1872.

A Y l -Illllllllllllllll UNITED STATES PATENT CFEIcE. i

EDMOND A. WARREN, OF NEW YORK, N. Y.

IMPROVEMENT IN PRINTING-PRESSES.

Specification forming part of Letters` Patent No. 127,815, dated une 11,1872.

Specification describing certain Improvements in Printing-Presses,invented by ED- MOND A. WARREN, of the city, county, and State ofNewYork.

This invention, or certain features of it, is more particularly designedto be applied to printing-presses for printing book-heads and other likework, although not exclusively restricted thereto. The improvementsconsist in the employment of certain top guides disconnected from thebed, but adjustable in or out relatively to the latter, and toward orfrom each other, for directing and arresting the feed of the strip orsheet to be printed, as in printing book or bill heads, said guidesbeing dispensed with when printing a continuous sheet. The improvementsalso consist in novel means for alternately steadying and setting inmotion a revolving inking-plate, the same being steadied by the travelof the inking-roller across its entire face, and being set in motion bythe action of a weight as the inking-roller leaves it. There are alsonovel means for hanging and operating the inking-roller, said meansincluding a combination of springs, racks, and pinions, whereby theinking-roller is made to have a uniform action over the inking-plate.

In the accompanying drawing, Figure 1 represents a front elevation of aprinting-press having my improvements applied to it; Fig. 2, a plan ofthe same, and Fig. 3 a mainly central vertical section thereof. Fig. 4is a face view of the chase detached, and Fig. 5 a longitudinal sectionof it.

Similar letters of reference indicate correspondin g parts throughoutthe several figures of the drawing.

In said drawing, A is the main frame, of any suitable construction, forcarrying the working parts of the press. B is the feed-table, which maybe provided with lside guides C O, adjustable along slots b in the tableto suit different widths of strips or sheets. D is a pileholder. E isthe platen, which is stationary; and F the chase, carried by a holder orbeam, G, and having a straight up-and-down motion toward and, from theplaten. H H are top guides for the strip or sheet to be printed. Theseguides are of a bent or hook shape at their forward ends c c to receivewithin them the advance portion of the sheet for the purpose ofadjusting the latter to its position under the type, and of keeping thesheet from being lifted by the form77 when receding from it. Said guidesare disconnected from the bed, so that they form no obstruction, and areattached to the feed-table B in an adjustable manner by means ofscrew-clamps d, arranged to pass through longitudinal slots ein theguides and through the slots b of the table, whereby said guides may notonly be set in or out relatively to the bed, but also toward or fromeach other to suit different feeds and widths of strips or sheets lbeingfed. When printing a continuous strip these guides are removed.

The chase F or its holder G is reciprocated to and from the bed in adirect or straight upand-down course within slotted side guides oruprights I I by pitmen f, deriving their motion from cranks oreccentric'pins g on spurwheels h, driven by pinions 'i on a maindriving-shaft, J. Said chase or its holder is also steadied and guidedin its travel by pinions K K fast to a cross upper shaft, L, and workingin stationary vertical racks M M, the shaft L turning in bearings oruprights carried by the chase-holder. This mode of operating the chaseinsures a uniformity of impression in all positions of the type, whetherarranged to occupy a central, forward, backward, or end position in thechase. The reciprocating rotary motion also, communicated to the shaft Lby the travel of the pinions K K up and down the rack M M, serves, in,conjunction with springs N N, to operatethe inking-roller O. Thisinking-roller is arranged to extend across the machine, and turns at itsends in bearings formed in curved levers or carriers PP, jointed at k toother curved levers or arms Q Q, which are adjustably attached to thereciprocating shaft L. The springs N N, that aid in the operation of theinking-roller, are attached to the jointed or pivoted carriers P P, andserve to keep said roller in contact with the inkingplate R whentraveling across it in an up-anddown direction; also serve to keep theroller in contact with guides S S during its passage to and from theinking-plate R and form in the chase F; likewise serve to produce anelastic pressure of the roller on the type when inking the latter. Saidinking-roller O is reciprocated over the inking-plate, and to and fromor over the form,77 by the swinging motion of the levers Q Q as derivedfrom the reciprocating action of the shaft L, which, being operated bythe pinions K K in a regular or uniform manner as said: pinions Work upand down the fixed racks M M, insure, in conj unction with the springsNN, a uniform action of the inlring-roller O over the inking-plate R,and thus produce a uniform inking of the roller. The inking-roller Oextends across the Whole face of the inking-plate, or to both sides ofthe axis of the latter, said inlring-plate being anintermittently-revolvin g one, pivoted at Z to an arm from thechase-holder. By this arrangement of the inking-ro11er on both oropposite sides of the axis ofthe inking-plate the latter is keptstationary by the roller when traveling over or across it, and is onlymoved, and this in one and the same direction, when the inking-roller isclear of the plate. This gives a better distribution of the ink, orexposure of the roller to repeatedly-changing inkingsurfaces, over or ascompared with operating the inkin g-roller from or on one side of theaxis of the plate, and the roller itself is made to steady or hold theplate when taking ink from it. Said inking-plate R is intermittentlyrevolved, when the inking-roller is 'clear of it, by the fallin g of aWeight or weighted lever, T, through a pawl, m, acting on a ratchet, n,fast to the nkingplate. This weighted lever is raised to give a freshbite of the paWl each time the hiking-roller is projected up over theplate by the upward swing of one of the levers or arms Q. U is a movablesmut-apron, arranged to pass over the bed E, and operating in the usualmanner. The chase F has the form77 secured in it by means of set-screwsw, which facilitates the placing and removal of the form. To provide forthe useof these screws without springing the chase the latter isconstructed with a back, y, and to provide for the convenient attachmentand removal of the chase to its holder G it is formed with dovetailslides or strips z on its back, arranged to lit correspondingly-shapedgrooves in the bottom of the chase-holder.

What is here claimed, and desired to be secured by Letters Patent, is-

1. The combination, with the platen E, of the detached top guides H H,adjustable to- Ward or from each other, and in relation to the bed,substantially as specified.

2. The combination, with the hiking-roller O, for the purpose ofoperating the same, of the traveling pinions K K, the shaft L, the fixedracks M M, the springs N N, and the levers l? and Q, essentially asherein set forth.

3. In combination with the revolving inking-plate R, the inking-rollerO, arranged to travel over said plate on both or opposite sides of theaxis of the latter, and the weight or weighted lever T,'\vith attacheddevices for revolving the plate when the hiking-roller is clear of it,substantially as described.

EDMOND A. WARREN.

Witnesses:

FRED. HAYNES, R. E. RABEAU.

